Compare phones
| Global Score | |
| 72.8 | 86.5 |
| Basic Information | |
| Oppo | Samsung |
| Android 9.0 Pie | Android 11, 10 |
| 2019-06-05 | 2020-03-05 |
| 6.17 x 2.93 x 0.35 inches | 6.27 x 2.96 x 0.35 inches |
| 6.53 ounces | 6.74 ounces |
| Black and Green | Black, Blue and Red |
| Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 710 SDM710 chipset | Exynos 9611 chipset |
| Kryo 360, 64-bit, 10 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 616 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.36 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3765mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M31 is much better than OPPO Reno, with a general score of 86.5 against 72.8. These devices work with Android OS, but the Galaxy M31 has older 11 version and OPPO Reno has Android 9.0 Pie. The Galaxy M31 design has the same thickness than the OPPO Reno, but it's just a little bit heavier. The Galaxy M31 counts with a bit better screen than OPPO Reno. They have exactly the same 1080 x 2340 resolution, a better quantity of pixels per inch of screen and a screen with the same size.
OPPO Reno has more memory capacity for applications and games than Galaxy M31, because although it has no SD extension slot, it also counts with more internal memory. Galaxy M31 has a little faster CPU than OPPO Reno, although it has lesser RAM memory, they both have 8 cpu cores. Samsung Galaxy M31 features a slightly better camera than OPPO Reno, because although it has a smaller camera aperture which is worse for low light photography, and they both have the same 3840x2160 (4K) video resolution and the same video frame rates, the Samsung Galaxy M31 also counts with a larger camera sensor capturing better quality videos and photographs and a lot better resolution back facing camera.
Galaxy M31 has a very superior battery duration than OPPO Reno, because it has a 6000mAh battery size instead of 3765mAh.
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